USGS · 07018500

BIG RIVER

USGS · 07018500LIVE

Big River at Byrnesville, MO

JEFFERSON COUNTY, MO38.3917°N, -90.6378°W Updated 32 min ago

FLOW RATE

257cfs

GAUGE HT

2.35ft

AIR TEMP

64°F

WIND

3mph S

FISH INDEX

94SCORE / 100

EPIC · 5 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

257cfs 57.7% vs avg

Optimal band: 218–296 cfs

PERIOD HIGH

261cfs

PERIOD LOW

253cfs

RUNNABLE

100%

last 1 day in band

Gauge Height

2.35ft

Precipitation History

SPONSORED

Weather Conditions

WEATHER CONDITIONS

TODAY

88°

64°

THU

89°

70°

FRI

87°

68°

SAT

88°

72°

SUN

101°

72°

MON

102°

73°

TUE

101°

75°

TIME

WED

NOW

THU

FRI

SAT

SUN

MON

TEMP

hourly forecast

83°

mild

83°

84°

86°

88°

86°

85°

75°

76°

74°

73°

74°

73°

72°

71°

70°

72°

75°

78°

80°

82°

85°

86°

88°

89°

88°

86°

82°

81°

79°

77°

75°

72°

70°

68°

70°

69°

71°

72°

74°

77°

81°

80°

77°

87°

79°

81°

80°

79°

76°

74°

73°

74°

73°

72°

73°

78°

76°

86°

88°

86°

84°

81°

78°

77°

76°

75°

74°

73°

72°

75°

80°

85°

89°

93°

96°

98°

99°

100°

101°

100°

96°

89°

85°

81°

78°

76°

75°

74°

73°

WIND

mph · gust · dir

7mph SW

G 11 mph

G11

WSW

G11

WSW

G10

NNW

WNW

SSE

G13

SSE

SSW

SSE

SSW

G10

G11

WSW

WNW

G11

G10

G12

NNW

G15

WNW

G10

NNW

G11

NNW

G13

G15

G13

NNE

G19

G14

ENE

G11

ESE

SSE

G24

WSW

G11

WNW

WSW

NNE

WSW

NNE

ESE

SSE

SSW

G22

G26

WSW

G23

G30

WSW

G23

G14

SSW

G16

G13

SSW

G18

G17

SSE

G20

SSE

G20

SSE

G17

SSW

G17

G15

SSE

G18

SSE

G19

G16

SSE

G14

G19

G22

SSW

G22

SSW

G13

G10

G22

G24

SSW

G24

G20

G17

G13

G12

G11

G12

WSW

G12

WSW

G15

G16

G13

SSW

PRECIP

chance %

11%

16%

17%

23%

22%

13%

16%

17%

11%

10%

13%

15%

14%

10%

12%

15%

18%

19%

17%

16%

18%

44%

55%

78%

65%

57%

56%

25%

33%

28%

10%

CLOUDS

cover %

82%

mostly

82%

100%

79%

100%

33%

39%

96%

100%

91%

54%

100%

86%

100%

93%

100%

67%

100%

56%

63%

100%

57%

62%

100%

18%

26%

43%

10%

72%

10%

PRESSURE

hPa · trend

1002

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Calm

Pressure

Falling — Active

Moon Phase

Good

DAYLIGHT

SUNRISE

05:39 AM

SUNSET

08:30 PM

14H 51M OF DAYLIGHT9H 13M REMAINING

MOON PHASE

First Quarter

69% illuminated

Station Location

38.3917, -90.6378

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-06-24 11:17 UTC

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